GEOMETRY

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Across
  1. 4. The common endpoint of two or more rays or line segments
  2. 6. is a true statement, which does not require to be proved.
  3. 8. is a line segment from a vertex of the triangle to the midpoint of the side opposite that vertex
  4. 11. point of concurrency of an altitude
  5. 13. point of concurrency of angle bisector
  6. 14. are coplanar lines that does not intersect
  7. 18. a side of an angle
  8. 19. angle measures more than 90 degrees
  9. 25. is the longest side of a right-angled triangle, the side opposite of the right angle
  10. 26. is the perpendicular segment from a vertex to its opposite side
  11. 28. angle measures exactly 90 degrees
  12. 30. point of concurrency of perpendicular bisector
Down
  1. 1. The portion of a line between any two points on the line
  2. 2. The side of a triangle which is perpendicular to the altitude.
  3. 3. is the part of a conditional statement just after the word if.
  4. 5. 2 coplanar line with a common side
  5. 7. formed by two intersecting lines
  6. 9. points that lie on the same line
  7. 10. precise location or place on a plane. Usually represented by a dot.
  8. 12. a set of properly ordered and accurately justified conditional statements
  9. 15. a ray that divides the angle into 2 congruent angles
  10. 16. a line with two endpoints
  11. 17. formed by 2 non-collinear rays with a common endpoint
  12. 20. A proposition that has been or is to be proved on the basis of explicit assumptions.
  13. 21. angle measure less than 90 degrees
  14. 22. A geometrical object that is straight, infinitely long and infinitely thin.
  15. 23. are lines that are not coplanar
  16. 24. is the "then" part of a conditional statement.
  17. 27. point of concurrency of median
  18. 29. either of the sides in a right triangle opposite an acute angle.are the two shorter sides of the triangle